CASBA

FREE CODE DOWNLOADS: IRC Appendix S & Appendix R with Commentary

18 Oct 2015 7:20 AM | Anonymous member (Administrator)


Appendix S – Strawbale Construction with Commentary

Appendix R - Light Straw-Clay Construction with Commentary

from the 2018 International Residential Code (IRC)

Free Download  (please download only the Appendix or Appendices you need)

Appendix S with Commentary
To receive your free download:
  1. Visit the Download page
  2. Click Add to Bag button
  3. Shopping Bag will appear in lower right corner of your browser
  4. Click Open Bag link
  5. Complete checkout process

The downloadable Appendix S and Appendix R are as they appear in the 2018 International Residential Code and Commentary published by the International Code Council (ICC). These downloads are made available by agreement between CASBA and the ICC.

The complete IRC with Commentary is available for purchase from the ICC here: 

Appendix S and Appendix R references sections of the IRC, so access to the complete IRC is important for full understanding and full use of them. The IRC applies to one- and two-family dwellings, their accessory structures, and townhouses.

The IRC is a model code with no legal standing of its own, but it is the basis for the residential code in virtually every state and local jurisdiction in the United States. However, many jurisdictions have not yet adopted the 2018 IRC, and some may not adopt Appendix S or Appendix R. Jurisdictions that do adopt Appendix S and Appendix R may also amend them. Consult your local building department to understand which edition of the IRC is the basis for its current building code and whether Appendix S and Appendix R are included.

Project applicants who wish to use Appendix S or Appendix R for a project where the state or local jurisdiction has not adopted the 2018 IRC or the Appendix, can propose use of the Appendix on a project basis with the local building official.

The Commentary explains and gives compliance examples for the Appendix code requirements and describes their intent. This is especially helpful for design professionals, builders, building owners, and code officials with little or no experience with strawbale construction.

Appendix S and California

Appendix S from the 2018 IRC is included in the 2019 California Residential Code (CRC) and was adopted by the Department of Housing and Community Development (HCD) for mandatory statewide use. The 2019 CRC took effect January 1, 2020. If a local building department or official claims their jurisdiction did not adopt Appendix S or otherwise refuse to use Appendix S, please contact Martin Hammer (see below).

Appendix R with Commentary
To receive your free download:
  1. Visit the Download page
  2. Click Add to Bag button
  3. Shopping Bag will appear in lower right corner of your browser
  4. Click Open Bag link
  5. Complete checkout process

Appendix R and California

Appendix R from the 2018 IRC is included in the 2019 California Residential Code, for voluntary use by local jurisdictions. Unlike Appendix S, it was not adopted by a state agency for mandatory statewide use.

Questions or Comments regarding IRC Appendix S and Appendix R can be directed to their lead author, Martin Hammer, at mfhammer@pacbell.net .


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